I know nothing about Mac backup (or really anything about recent Macs) whatsoever and I am not excited about trying to research that. If anybody has tips on that front I'd appreciate it.
MacOS backups are much easier then Windows since it doesn't have a registry, and if you know anything about backing up Unix-like operating systems, the knowledge transfers. Just copy everything off of it, or if you want to get fancy, buy a "personal cloud" NAS device that supports being used as a Time Machine target for onsite backups. Time Machine is pretty automatic once it's setup, and Newegg had a Qnap 2x disk device on sale recently that was capable of being a Time Machine target.
) or Spideroak (https://spideroak.com/one/
) are good for offsite backups. Spideroak can do sync as well, but sync isn't something Backblaze really does. Google Drive is a good service to pair with Backblaze.
iCloud is good for backing system settings, but I wouldn't use it to back up files.